Deskripsi
Pipa baja tanpa jahitan, seperti namanya, adalah pipa tanpa jahitan atau sendi las. Pipa baja tanpa jahitan adalah bagian tabung atau silinder berongga, biasanya tetapi tidak selalu berpotongan melintang,digunakan terutama untuk mengangkut zat-zat yang dapat mengalirkan cairan dan gas (cairan), bubur, bubuk dan massa padatan kecil.
Standar: ASTM A106/A53/A500/ASME SA106/SA53/DIN1629/JIS G3444/G3445/G3452
Sertifikat: ISO 9001, ISO 14001, ISO 45001, CE
Diameter luar: 1/8 - 36 inci (10.3-914.4mm)
Ketebalan dinding: 1,25 - 50 mm
Panjang: Panjang acak, Panjang tetap, SRL, DRL
Kelas baja:
ASTM A53/ASTM A106: GR A, GR B, GR CASME
ASME A500: GR.A, GR.B, GR.C, GR.D
Tes yang Dibutuhkan:
Analisis Kimia, Uji Mekanis, Pemeriksaan Visual, Uji Ketegangan, Uji Dimensi, Uji Bending, Uji Flattenting, Uji Dampak, Uji DWT, Uji NDT, Uji Hidrostatik, Uji Kekerasan
Komposisi Kimia dan Sifat Mekanis
| Standar |
Kelas |
Komponen kimia (%) |
Sifat Mekanis |
| |
|
C |
Ya. |
Mn |
P |
S |
Kekuatan tarik ((Mpa) |
Kekuatan hasil ((Mpa) |
| ASTM A53 |
A |
≤ 0.25 |
- |
≤ 0.95 |
≤ 0.05 |
≤ 0.06 |
≥330 |
≥205 |
| |
B |
≤ 0.30 |
- |
≤ 1.2 |
≤ 0.05 |
≤ 0.06 |
≥415 |
≥ 240 |
| ASTM A106 |
A |
≤ 0.30 |
≥ 0.10 |
0.29-1.06 |
≤ 0.035 |
≤ 0.035 |
≥415 |
≥ 240 |
| |
B |
≤ 0.35 |
≥ 0.10 |
0.29-1.06 |
≤ 0.035 |
≤ 0.035 |
≥ 485 |
≥ 275 |
| ASTM A500 |
A |
≤ 0.26 |
- |
≤ 1.35 |
≤ 0.035 |
≤ 0.035 |
≥310 |
≥ 230 |
| |
B |
≤ 0.30 |
- |
≤ 1.40 |
≤ 0.045 |
≤ 0.045 |
≥ 400 |
≥290 |
| |
C |
≤ 0.23 |
- |
≤ 1.35 |
≤ 0.035 |
≤ 0.035 |
≥425 |
≥ 315 |
| |
D |
≤ 0.27 |
- |
≤ 1.40 |
≤ 0.045 |
≤ 0.045 |
≥ 400 |
≥ 250 |
Toleransi pipa baja tanpa jahitan karbon
| Jenis pipa |
Ukuran pipa ((mm) |
Toleransi |
| Bergelombang panas |
OD<50 |
±0,50mm |
| |
OD≥50 |
± 1% |
| |
WT<4 |
± 12,5% |
| |
WT 4?? 20 |
+15%, -12,5% |
| |
WT>20 |
± 12,5% |
| Ditarik dingin |
OD 6?? 10 |
±0,20mm |
| |
OD 10 ¢ 30 |
± 0,40 mm |
| |
OD 30 ¢ 50 |
± 0.45 |
| |
OD> 50 |
± 1% |
| |
WT≤1 |
± 0,15 mm |
| |
WT 1?? 3 |
+15%, -10% |
| |
WT >3 |
+ 12,5%, -10% |
| Ukuran pipa nominal |
OD
(mm)
|
Ketebalan dinding nominal
|
| DN |
NB ((inci) |
ASME |
SCH10 |
SCH20 |
SCH30 |
Penyakit menular seksual |
SCH40 |
SCH60 |
XS |
SCH80 |
SCH100 |
SCH120 |
SCH140 |
SCH160 |
XXS |
| 15 |
1/2 " |
21.3 |
2.11 |
|
2.41 |
2.77 |
2.77 |
|
3.73 |
3.73 |
|
|
|
4.78 |
7.47 |
| 20 |
3/4 " |
26.7 |
2.11 |
|
2.41 |
2.87 |
2.87 |
|
3.91 |
3.91 |
|
|
|
5.56 |
7.82 |
| 25 |
1 " |
33.4 |
2.77 |
|
2.9 |
3.38 |
3.38 |
|
4.55 |
4.55 |
|
|
|
6.35 |
9.09 |
| 32 |
1.1/4" |
42.2 |
2.77 |
|
2.97 |
3.56 |
3.56 |
|
4.85 |
4.85 |
|
|
|
6.35 |
9.7 |
| 40 |
1.1/2" |
48.3 |
2.77 |
|
3.18 |
3.68 |
3.68 |
|
5.08 |
5.08 |
|
|
|
7.14 |
10.15 |
| 50 |
2 " |
60.3 |
2.77 |
|
3.18 |
3.91 |
3.91 |
|
5.54 |
5.54 |
|
|
|
8.74 |
11.07 |
| 65 |
2.1/2" |
73 |
3.05 |
|
4.78 |
5.16 |
5.16 |
|
7.01 |
7.01 |
|
|
|
9.53 |
14.02 |
| 80 |
3 " |
88.9 |
3.05 |
|
4.78 |
5.49 |
5.49 |
|
7.62 |
7.62 |
|
|
|
11.13 |
15.25 |
| 90 |
3.1/2" |
101.6 |
3.05 |
|
4.78 |
5.74 |
5.74 |
|
8.08 |
8.08 |
|
|
|
|
|
| 100 |
4" |
114.3 |
3.05 |
|
4.78 |
6.02 |
6.02 |
|
8.56 |
8.56 |
|
11.13 |
|
13.49 |
17.12 |
| 125 |
5" |
141.3 |
3.4 |
|
|
6.55 |
6.55 |
|
9.53 |
9.53 |
|
12.7 |
|
15.88 |
19.05 |
| 150 |
6" |
168.3 |
3.4 |
|
|
7.11 |
7.11 |
|
10.97 |
10.97 |
|
14.27 |
|
18.26 |
21.95 |
| 200 |
8" |
219.1 |
3.76 |
6.35 |
7.04 |
8.18 |
8.18 |
10.31 |
12.7 |
12.7 |
15.09 |
18.26 |
20.62 |
23.01 |
22.23 |
| 250 |
10" |
273 |
4.19 |
6.35 |
7.8 |
9.27 |
9.27 |
12.7 |
12.7 |
15.09 |
18.26 |
21.44 |
25.4 |
28.58 |
25.4 |
| 300 |
12" |
323.8 |
4.57 |
6.35 |
8.38 |
9.53 |
10.31 |
14.27 |
12.7 |
17.48 |
21.44 |
25.4 |
28.58 |
33.32 |
25.4 |
| 350 |
14" |
355.6 |
6.35 |
7.92 |
9.53 |
9.53 |
11.13 |
15.09 |
12.7 |
19.05 |
23.83 |
27.79 |
31.75 |
35.71 |
|
| 400 |
16" |
406.4 |
6.35 |
7.92 |
9.53 |
9.53 |
12.7 |
16.66 |
12.7 |
21.44 |
26.19 |
30.96 |
36.53 |
40.19 |
|
| 450 |
18" |
457.2 |
6.35 |
7.92 |
11.13 |
9.53 |
14.27 |
19.05 |
12.7 |
23.83 |
39.36 |
34.93 |
39.67 |
45.24 |
|
| 500 |
20 " |
508 |
6.35 |
9.53 |
12.7 |
9.53 |
15.09 |
20.62 |
12.7 |
26.19 |
32.54 |
38.1 |
44.45 |
50.01 |
|
| 550 |
22" |
558.8 |
6.35 |
9.53 |
12.7 |
9.53 |
|
22.23 |
12.7 |
28.58 |
34.93 |
41.28 |
47.63 |
53.98 |
|
| 600 |
24" |
609.6 |
6.35 |
9.53 |
14.27 |
9.53 |
17.48 |
24.61 |
12.7 |
30.96 |
38.89 |
46.02 |
52.37 |
59.54 |
|
| 650 |
26" |
660.4 |
7.92 |
12.7 |
|
9.53 |
|
|
12.7 |
|
|
|
|
|
|
| 700 |
28" |
711.2 |
7.92 |
12.7 |
15.88 |
9.53 |
|
|
12.7 |
|
|
|
|
|
|
| 750 |
30 " |
762 |
7.92 |
12.7 |
15.88 |
9.53 |
|
|
12.7 |
|
|
|
|
|
|
| 800 |
32 " |
812.8 |
7.92 |
12.7 |
15.88 |
9.53 |
17.48 |
|
12.7 |
|
|
|
|
|
|
| 850 |
34" |
863.6 |
7.92 |
12.7 |
15.88 |
9.53 |
17.48 |
|
12.7 |
|
|
|
|
|
|
| 900 |
36" |
914.4 |
7.92 |
12.7 |
15.88 |
9.53 |
19.05 |
|
12.7 |
|
|
|
|
|
|
Standar
| ASTM A53 |
Spesifikasi Standar untuk Pipa, Baja, Hitam dan Hot-dipped, Zinc-coated, Las dan Seamless |
| ASTM A106 |
Spesifikasi standar untuk pipa baja karbon tanpa jahitan untuk layanan suhu tinggi |
| ASTM A500 |
Spesifikasi untuk tabung struktural baja karbon las dan tanpa jahitan yang dibentuk dingin dalam bentuk bulat dan bulat |
Hot Rolling Seamless Steel Line Pipe Manufaktur / Proses Produksi
Rolled Round Billets – Examination – Cut Off – Heating – Piercing – Elongation – Slight Tension Reducing – Straightening – Corp End Cutting Off – Visual Inspection – NDT – Hydrostatic Test – Ends Procession – Product Inspection – Painting and Marking – Packing – Warehousing
Proses pembuatan pipa baja tanpa jahitan yang ditarik dingin
Mother pipe (Normally for hot rolled pipe) – Inspection – Annealing – Ends Treatment (Hitting and Drilling hole) – Pickling – Grinding – Phosphorization (Annoit) – Cold Drawn (Rolled) – Degreasing and Cleaning – Heat treatment (Solution treatment) – Straightening – Hydrostatic test – Painting and Marking – Warehousing
Proses
Pesan Anda harus antara 20-3.000 karakter!
